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Date: 2008-12-12 17:48:27Magnet Electric motors Wire Loudspeakers Coil Electromagnet Neodymium magnet Telephone Speaker driver Electromagnetism Physics Magnetism | Microsoft Word - Build Your Own Speaker.docAdd to Reading ListSource URL: invention.smithsonian.orgDownload Document from Source WebsiteFile Size: 44,02 KBShare Document on Facebook |